Thanks for the video. Got the 2023 EFI from Amazon a few months ago and have only put 100 miles on it. The first week the back tube stem just ripped right off with under 20 miles on it and shook my confidence so I installed a rim lock which seems to be working. And yet, I'm worried I'll get another flat. Anyhow, I got it to commute to work so I'll be starting soon, the 100 miles has been just breaking it in and so far I really like it, just the thought of a flat keeps making me hesitate. Maybe it's because it a Chinese bike, but it feels good and responds well. Am I being a chicken shit? FYI: Mine cam with a 16/45 ratio but I changed the rear sprocket to a 40 tooth and shortened the chain by 4 links, 70 mph easy.